| Cuy | |
| Commune Status: | Commune |
| Coordinates: | 48.2583°N 3.2656°W |
| Insee: | 89136 |
| Postal Code: | 89140 |
| Arrondissement: | Sens |
| Canton: | Thorigny-sur-Oreuse |
| Mayor: | François Sylvestre[1] |
| Term: | 2020 - 2026 |
| Elevation Min M: | 61 |
| Elevation Max M: | 128 |
| Area Km2: | 6.97 |
Cuy (in French pronounced as /kɥi/) is a commune in the Yonne department in Bourgogne-Franche-Comté in north-central France.